/*
 * @version 1.0
 * @date:2010/10/01
 * @author:Geln Yang
 */

(function () {
	jtool.cookie = {setCookie:function (name, value, expires, path, domain, secure) {
		// set time, it's in milliseconds
		var today = new Date();
		today.setTime(today.getTime());
		/*
		if the expires variable is set, make the correct
		expires time, the current script below will set
		it for x number of days, to make it for hours,
		delete * 24, for minutes, delete * 60 * 24
		*/
		if (expires) {
			expires = expires * 1000 * 60 * 60 * 24;
		}
		var expires_date = new Date(today.getTime() + (expires));
		var cookie = name + "=" + escape(value);
		cookie += ((expires) ? ";expires=" + expires_date.toGMTString() : "");
		cookie += ((path) ? ";path=" + path : "");
		cookie += ((domain) ? ";domain=" + domain : "");
		cookie += ((secure) ? ";secure" : "");
		document.cookie = cookie;
	}, getCookie:function (check_name) {
		// first we'll split this cookie up into name/value pairs
		// note: document.cookie only returns name=value, not the other components
		var a_all_cookies = document.cookie.split(";");
		var a_temp_cookie = "";
		var cookie_name = "";
		var cookie_value = "";
		var b_cookie_found = false; // set boolean t/f default f
		for (i = 0; i < a_all_cookies.length; i++) {
			// now we'll split apart each name=value pair
			a_temp_cookie = a_all_cookies[i].split("=");

			// and trim left/right whitespace while we're at it
			cookie_name = a_temp_cookie[0].replace(/^\s+|\s+$/g, "");
			// if the extracted name matches passed check_name
			if (cookie_name == check_name) {
				b_cookie_found = true;
				// we need to handle case where cookie has no value but exists (no = sign, that is):
				if (a_temp_cookie.length > 1) {
					cookie_value = unescape(a_temp_cookie[1].replace(/^\s+|\s+$/g, ""));
					var valueRegex = /^"(.+)"/g;
					if (valueRegex.test(cookie_value)) {
						cookie_value = cookie_value.replace(valueRegex, "$1");
					}
				}
				// note that in cases where cookie is initialized but no value, null is returned
				return cookie_value;
				break;
			}
			a_temp_cookie = null;
			cookie_name = "";
		}
		if (!b_cookie_found) {
			return null;
		}
	}, deleteCookie:function (name, path, domain) {
		if (getCookie(name)) {
			jtool.cookie.setCookie(name, null, "Thu, 01-Jan-1970 00:00:01 GMT", path, domain);
		}
	}};
})();

